Element for masonry construction



May 20, 1930. K. H. TENGSTEDT ELEMENT FOR MASONRY CONSTRUCTION Filed June 5. 1929 Patented May 20, 1930 KARL H. TENGSTEDT, OF CHICAGO, ILLINOIS ELEMENT non MASONRY CONSTRUCTION Application filed June 5, 1929. Serial No. 368,514.

My present invention relates to improvements in elements for masonry construction and consists more particularly in the provision of surface plates between which are cast and reinforced a concretebody, which body is substantially monolithic extending continuously between the opposite groups of face plates; Such face plates may conveniently be molded and burnt the same as building tile, thereby securing a weather resisting Surface of superior efficiency and at the same time the plates constitute the molds within which the reinforced concrete is deposited and cast. Y

As will be hereafter seen, I have provided face plates of simple and economical construction provided with vertical channels for securing heat insulating effects and with undercut interior ridges for engaging with the concrete, and in connection with pairs of such face plates I have provided means for holding them in spaced relation which may be dependably clamped together so as to more dependa ly secure the tile in their desired relation.

I attain the foregoing objects by means of the structure illustrated in the accompanying drawings in which i Fig. 1 is a perspective of a pair of oppo- 9 sitely arranged tile with the securing means omitted.

Fig. 2 is a central vertical section of a pair of tile with the securing means in position; and

means detached from the tile but in assembled position. 7

Similar reference characters refer to similar parts throughout the several views.

By reference to Fig. 1 it will be seen that the tile 5 may convenientlybe made in rectangular plates having vertical air recesses or channels 6. The ends of the tile are provided with undercut or dovetailing channels 7 which register with like channels in an adj acent tile and which, when filled with cement, concrete or mortar, seal and secure thevertical edges of adjacent tile together. Upon the inner faces of the tile may be provided undercut ribs 8 for interlocking with the cast cen- Fig. 3 is a perspective of the securing tral concrete. Between the bottoms of the ribs 8 the inner face of the tile is preferably bowed slightly inwardly at 9 and slots 10 are provided opposite this bowed portion running from the top to the bottom of the tile. The means for securing a pair of tile together are shown in Fig. 3 and comprise what may be regarded as channels 1111, the flanges 12-12 of which enter the slots l010 of the opposite tile. The web of the channels as seen is bowed downwardly and centrally perforated to pass a tie bolt 13 on the tops of which engages av butterfly nut 14 by means of whichthe channels may be tightly drawn together to clamp the tile in desired spaced relation.

In the practical forming and burning of building tile considerable variation in the size, shape and location of the respective parts unavoidably occurs. That is, the slots 10 in the respective tile are not uniform either in size or position, but the clamping means heretofore described will permit a considerable variation in the size and position of the slots 10 and nevertheless dependably clamp the respective tile together. This is a particularly important feature as any movement of the tile after the concrete has been placed between them and before it is set destroys the integrity of the wall.

Having described my invention what I 7 claim as new and desire to secure by Letters Patent is:

1. In elements of masonry construction a pair of tile having slots running vertically therethrough, a pair of channels the flanges whereof enter the slots in said tile from opposite ends and a tie bolt for securing the webs of said channels together.

2. In elements of masonry construction a pair of tile having slots running vertically therethrou'gh, a pair of channels the webs whereof are inwardly curved, the flanges whereof enter the slots in said tile from opposite ends and a tie bolt for securing the webs of said channels-together.

3. In elements of masonry construction a pair of tile provided with vertically disposed air spaces and vertically disposed slots, a pair of channels the flanges whereof enter the slots in said tile from opposite ends and a tie bolt for securing the Webs of said channels together.

4:. In elements of masonry construction a pair of tile having vertical slots therein and provided upon their inner faces with vertical undercut projections, a pair of channels the flanges whereof enter the slots in said tile from opposite ends and a tie bolt for securing the Webs of said channels together.

KARL H. TENGSTEDT. 

